Estudio preliminar de los sedimentos recientes de las lagunas de Villafáfila (Zamora)

Santisteban, J.I. ^[4] ; García del Cura, M.A. ^[1] ; Mediavilla, R. ^[2] ; Dabrio, C.J. ^[3]
1. [1] Universitat d'Alacant
  
  Universitat d'Alacant
  
  Alicante, España
2. [2] Instituto Geológico y Minero de España
  
  Instituto Geológico y Minero de España
  
  Madrid, España
3. [3] Universidad Complutense de Madrid
  
  Universidad Complutense de Madrid
  
  Madrid, España
4. [4] Universidad Alcalá de Henares
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Localización: Geogaceta, ISSN 0213-683X, Nº. 33, 2002, págs. 51-54
Idioma: español
Títulos paralelos:
- Preliminary report on recent deposits of the Lagunas de Villafafila (Zamora).
Enlaces
- Texto completo (pdf)

Resumen
- Recent sedimentation in the Lagunas de Villafafila is dominated by fine-grained siliciclastic deposits mainly composed of quartz, feldspar, muscovite, illite and kaolinite. Sediments are clay, clayey silts and clayey fine sands with sparse pedogenic carbonates and organic matter. The recentmost sediments contain diatoms and carbonates with bacterial features. Their structure is composed by parallel lamination, sometimes inclined by adaptation to bottom topography, and erosive surfaces. Rootlets are common to the top. Layering, textures and sedimentary structures reflect energy changes in the hydrological regime mainly related to water incomes from nearby areas. Although saline eflorescences are known to be generated since several millennia ago, saline layers and minerals are rare in the cores.